OCAM²

OCAM² by First Light Imaging

OCAM²K and OCAM²S are high speed low noise EMCCD cameras able to run at 2067 fps (3700 fps in binning) with subelectron readout noise.

To achieve this performance, OCAM²K integrates the Teledyne E2V CCD220 sensor, a Peltier-cooled 240 x 240 pixel frame-transfer 8- output back-illuminated sensor. Whereas, OCAM²S features an integrated electronic shutter and uses the Teledyne E2V CCD 219 Peltier-cooled 240 x 240 pixel 8 output split frame transfer CCD.

The Embedded Electronic Shutter in OCAM²S is able to deliver an arbitrary number of integration pulses that can be shorter than 1 μs with a precision better than 50 ns.

To minimize smearing, the CCD220 and CCD219 high speed metal buttressed clock lines are driven by OCAM²K and OCAM²S at a speed as high as 7 Mlines/s transferring each frame in the store section in only 12 microseconds. OCAM²K and OCAM²S also offers an extremely low latency: 43 μs between exposure and first pixel availability.

Developed by astronomers for astronomers for visible imaging, with up to 95% quantum efficiency over a wide spectrum (from 400 to 900 nm), the EMCCD cameras OCAM²K and OCAM²S are the fastest visible cameras with subelectron read out noise. For wavefront sensing applications, OCAM²K and OCAM²S can be equipped with a 20 x 20 subapertures microlens array (customizable on request).